Magazine pencil



Dec. l924- 1,521,523

w. J. FRINK MAGAZINE PENCIL Filed Jan. 11. 1921 Patented Dec. 30, 1924.

UNITED STATES WA TER J. FRINK, or CHATTANOOGA, TENNESSEE.

MAGAZINE PENCIL.

Application filed January 11, 1921. Serial No. 436,446.

To all whom it may concern:

Be it known that I, WALTER J. FRINK, a citizen of the United States,residing at Chattanooga, in the county of Hamilton and new and usefulImprovements in Magazine Pencils, of which the followingis aspecification.

My invention relates to magazine pencils,

wherein a plurality of independent leads are carried Within the shell ofthe pencil in a suitable receptacle, whereby they may be used toreplenish the pencil when desired, suitable mechanism being employed tofeed the independent leads from the pencil as used. The object of theinvention is to provide a pencil of this kind, which is simple in theextreme, consisting of comparatively few parts, which may be easilyassembled and held together without the aid of fastening any of theparts permanently together, by solder, rivets, screw-threads, or the like.

A further object is to so arrange the parts that they may be readilydisassembled for repair or adjustment or cleaning.

In the accompanying drawings:

Fig. 1 is a longitudinal sectional View of the complete pencil;

Fig. 2 is a detail View of the tubular guide member;

Fig. 3 is an enlarged transverse section on line 3-3 of Fig. 1;

Fig. 4 is a detail sectional view of the forward end of the pencil,showing a modified form of the tubular guide.

Fig. 5 is a detached perspective of a portion of the guide tube showinga modified form of holding means.

The numeral 1 indicates the outer hollow shell or barrel made of anysuitable material, being preferably drawn out or tapered at one end toform a conical tip 2. The extreme forward end of the tip is slotted asat 3, 3, to form jaws 4, 4, adapted to firmly the lead 5.

rranged concentric with the outer shell 1 is an inner cylindrical guidemember 6, extending substantially the full length of the outer member,the forward end thereof being received and supported by the tapered endof the outer shell. This guide member preferably is provided with alongitudinal slot 7 extending the full length thereof, thelongitudinaledges or flanges 8 and 9 of the said guide member adapted toState of Tennessee, have invented certainxo flare outwardly, and bearagainst the inner wall of the outer shell.

' 10, indicates a' flange arranged at the outer end of the guide6',adapted to extend in the opposite direction to the flarededges 8 and9, and to act to properly align the guide 5.

To hold the guide member (5 against longitudinal movement, I preferablyprovide an inturned head 11 at the outer end of the shell 1, which actsas an abutment for the flange 10 and the notches 12 in the flanges 8 and9. It will be observed that the tubular member is nowhere permanentlysecured within the shell, and may be readily removed at any time foradjustment or clean- :i ng the shell of small particles of lead whichmay be wedged Within, thereby preventing the proper manipulation of, thepencil.

The lead-actuating mechanism preferably consists of a tube or sleeve 13,adapted to fit snugly within the guide members 6, the former beingprovided with a helical slot 14. Received within the tube 13 is aplunger 15 formed of a piece of wire having an offset portion 16 passingthrough the helical slot 14, and extending longitudinally along the tube13, being received in the longitudinal slot 7 of the guide 6, therebyholding the plunger against rotation with respect to the guide memberand the outer casing, yet permitting longitudinal movement of theplunger by the rotation of the slotted sleeve 13. The outer end of thetube 13'is squared as at 17, and is received within a similar opening 18in the ferrule or cap 19, which is received over the outer end of theshell 1, and held against longitudinal movement by the depression 20,which registers with the depressed bead 11. The rotation of the ferrule19 imparts a rotary motion to the tube 13, which causes the plunger 15(which is held against rotation by the slotin the tube) to be fed alongthe tube, the inner end thereof coming in contact with the lead 5.causing it to be fed outwardly from the shell.

21, indicates an annular space between the outer casing and the innerguide tube 6, which forms a magazine for extra leads 22. This space isadapted to accommodate a sufficient number of leads to rendercomparatively long use of the pencil on one charge.

In Fig. 4 I have shown a modified form wherein the guide tube 6 has arestricted inner end 23, of such a construction as to grip the inner endof the lead 5, thereby greatly stiffening the general support of thelead 5 1. A magazine pencil comprising an outer-- shell having a conicaltip, an inner removable longitudinally slotted guide tube receivedcentrally of the shell, one end being received Within the conical end ofthe shell, the other end of said tube being provided with a radialflange adapted to engage the inner Wall of the outer shell tofriction-ally hold the tube in place, a lead received in the conicaltip, a helically slotted sleeve received in said guide tube adapted tosurround the inner end of the lead, a plunger arranged .within saidhelically slotted sleeve having a portion thereof offset, passingthrough the helical slot and being received within the longitudinal slotof the guide-tube, whereby it is held against rotary movement, and a capcarried by the outer end of the outer shell and in engagement with thehelical slotted sleeve, whereby the latter is rotated to elfectalongitudinal movement of the plunger. v

2. A magazine pencil comprising a shell having a conical tip','and alongitudinally slotted and flanged guide tube received centrally of theshell, of such a diameter as to elfect an annular space between saidguide tube and shell, one end of said guide tube bemg received in theconical tip, and the longitudinal flange formed at one side of said slotand adapted to bear against the in-v supporting said tube in said shella lead received in said conical tip, and lead actuatin means recelved insaid guide tube and held against rotation by the longitudinal guide tubeslot.

3; A magazine pencil comprising a shell having a conical tip, and alongitudinally slotted and flanged guide tube received centrally of theshell, of such a diameter as to effect an annular space between saidguide tube and shell, one end of said guide tube being received in theconical tip and the longitu inal flange formed atone side of said slotand adapted to bear against the inner wall of said shell, resilientmeans projectin from the other side of said tube from sai flange adaptedto bear against said shell and ,to cooperate with said flange forcentering and supporting said tube in said shell, a bead on said shellwith which said resilient means co-operates for frictionally and re-'movably holding said tube in sald shell, a lead received in said conicaltip, and leadactuating means received .in said ide-tube and held againstrotation by the ongitudinal guide tube slot.

. In testimony whereof I aflix my signature.

WALTER J. FRINK.

